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About Masonry

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The Roman arch averted tension totally, maintaining many of the masonry in compression, from your keystone into the piers. Stone in compression has wonderful toughness, along with the Romans crafted large arched bridges and aqueducts in substantial numbers. Extending their arch into a tunnel, they invented the barrel vault, with http://www.localhomeservicepros.com/united-states/irvine/home-construction/west-hills-masonry

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